Life Ahead Computer Program is believed to provide a most advanced-yet analysis of how diet and exercise can develop up to 15 more years of healthy days to an average US life. Many can enter a usual daily diet in a few minutes. Life Ahead then compiles the calories and 23 key health-important nutrients in 380 most usually eaten foods. The effects of these nutrients on 19 major causes of death and likely well-days of future life are then computed from all or nearly all published research using biochemical engineering technology.